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This is an LED / neon sign shell designed as minimalist snowflake. The color of LEDs I used is Cold White (warm white LEDs have a very yellow-ish glow to them, whereas cold white is more of a pure white color)
For build instructions and a compatible parts list, see this 3D Printed Neon Sign Tutorial. There is also a video for how to create your own custom 3D printed light shells using Fusion 360!
I recommend printing this in PETG as the flexibility and heat resistance will help with assembly and longevity, respectively. But I have included a PLA profile as well.